Thiemo Carsten Jannick de Bakker (born 19 September 1988) is a Dutch professional tennis player. Considered a top prospect of his generation as a junior, he also made an impressive breakthrough as a young pro, reaching a career-high ranking in singles of World No. 40 achieved on 19 July 2010 and World No. 115 in doubles achieved on 10 February 2014. However, in a career largely plagued by injuries and inconsistencies afterwards, he was never quite able to build on his early career success. Career Junior career De Bakker finished 2006 as the ITF Junior Champion, after having won the Boys' Singles title at the 2006 Wimbledon Championships. Early career De Bakker received a wild card into the ATP Amersfoort event in July 2006 and defeated top 100 and French Open Quarterfinalist Julien Benneteau in the 1st round, winning in straight sets 6–3, 6–3. In the 2nd round he faced Frenchman Marc Gicquel and lost in 3 sets. As he was the reigning Junior Champion, De Bakker received a wild card into the main draw of the 2007 Wimbledon Championships, where he would lose in 5 tight sets to qualifier Wayne Arthurs. In October 2006, De Bakker won his first senior international title in a Futures event in Albufeira, Portugal, where he beat Briton Morgan Phillips in the final. This was followed by another win in a Futures tournament two weeks later in San Miguel, Portugal. He reached a career high ATP ranking of 228 on 25 August 2008. 2009 On 22 March 2009, he finished as runner-up in the Caltanissetta Challenger tournament to compatriot Jesse Huta Galung, losing in straight sets. On 5 May 2009, as a qualifier and ranked 236, he defeated the 5th seed Rainer Schüttler in the first round of the BMW Open in Münich in straight sets, before losing to former world number one, Lleyton Hewitt. De Bakker would follow this up in the 2009 Ordina Open, by qualifying for the tournament and losing in the second round to Rainer Schüttler, after defeating Björn Phau in three tight sets. De Bakker hit a rich vein of form in August, winning four Challenger tournaments, and bumping his ranking from 256 to 122, in the span of one month. His form continued in Davis Cup competition, by beating World Number 13 Gaël Monfils in 4 sets, and putting the Netherlands up 1–0 on France, but lost to